Superficial endometriosis of left ureter

This code signifies the presence of endometrial-like tissue growing on the surface of the left ureter, a tube that carries urine from the kidney to the bladder. This condition can cause pain, hydronephrosis, or urinary tract obstruction. It is a form of extrapelvic endometriosis specifically affecting the urinary system.

Apply this code when documentation explicitly states superficial endometriosis involving the left ureter. This diagnosis is typically confirmed through imaging studies (e.g., MRI, CT scan) or direct visualization during surgical exploration (e.g., laparoscopy, ureteroscopy) with or without biopsy.

• Differentiate from deep infiltrating endometriosis of the ureter, which has a separate code.
• Ensure the laterality (left) is clearly documented and matches the code.
• Code any associated complications, such as hydronephrosis, separately.